New Haven County is a county located in the U.S. state of Connecticut. As of the most recent data available, the county has a population of approximately 824,008 people, with a population density of about 359.75 persons per square mile.
The county spans a total land area of 606.00 square miles (1,570.00 square kilometers). The administrative center and county seat is , which often serves as a hub for local governance and services. The largest city within the county by population is New Haven.
Geographically, New Haven County experiences varied elevations, with its highest point at Prospect 852 ft and its lowest point at Heritage Village 0 ft. The region operates in the UTC-5.